I have a function 1/(z^4 + 1)(adsbygoogle = window.adsbygoogle || []).push({});

I know the poles are pi/4, 3pi/4, 5pi/4, 7pi/4

It says they are simple poles, I thought I understood why, but now I am totally confused. How does my lecturer just know that they are simple?

A simple pole is a pole of order 1, but I thought this meant you look at the series and get the order from the highest indice of z on the denominator?

Help!

Cheers

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# Homework Help: Simple poles and residues

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